title: Comparison of the diversity of the bacterial communities in the intestinal tract of adult Bactrocera dorsalis from three different populations.
abstract: OBJECTIVE
  To (i) identify the bacterial communities in the gut of oriental fruit fly (Bactrocera dorsalis) adult and (ii) determine whether the different surroundings and diets influence the bacteria composition.
  
  
  RESULTS
  Polymerase chain reaction-denaturing gradient gel electrophoresis (DGGE) fingerprinting was used to investigate bacterial diversity in the oriental fruit fly adult gut. The 16S rDNA cloned libraries from the intestinal tract of laboratory-reared (LR), laboratory sterile sugar-reared (LSSR) and field-collected (FC) populations of oriental fruit fly were compared. Phylogenetic analysis of 16S rDNA revealed that Gammaproteobacteria were dominant in the all samples (73·0-98·3%). Actinobacteria and Firmicutes were judged to be major components of a given library as they constituted 10% or more of the total clones of such library. The Flavobacteria, Deltaproteobacteria, Bacteroidetes and Alphaproteobacteria were observed in small proportions in various libraries. Further phylogenetic analyses indicated common bacterial phylotypes for all three libraries, e.g. those related to Klebsiella, Citrobacter, Enterobacter, Pectobacterium and Serratia. LIBSHUFF analysis showed that the bacterial communities of B. dorsalis from the three populations were significantly different from each other (P < 0·0085).
  
  
  CONCLUSIONS
  (i) The intestinal tract of B. dorsalis adult contains a diverse bacterial community, some of which are stable. (ii) Different environmental conditions and food supply could influence the diversity of the harboured bacterial communities and increase community variations.
  
  
  CONCLUSIONS
  Comparison of the microbial compositions and common bacterial species found in this paper may be very important for the biocontrol of B. dorsalis.
authors.affiliation: State Key Laboratory of Agricultural Microbiology, Institute of Urban and Horticultural Pests, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China.
authors.forename: H
authors.initials: H
authors.lastname: Wang
authors.forename: L
authors.initials: L
authors.lastname: Jin
authors.forename: H
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000818:Animals; D001419:Bacteria / Q000145:classification / Q000235:genetics*; D044822:Biodiversity; D016172:DNA Fingerprinting; D004269:DNA, Bacterial / Q000235:genetics; D058645:Denaturing Gradient Gel Electrophoresis; D004032:Diet; D015723:Gene Library; D007422:Intestines / Q000382:microbiology*; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D033621:Tephritidae / Q000382:microbiology*
chemical_list: D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S